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AlexFokin [52]
3 years ago
8

Unit Test 4

Mathematics
1 answer:
o-na [289]3 years ago
3 0

Answer:

C. 30

Step-by-step explanation:

circumference of the semicircular plot

=\frac{1}{2}\times\pi d+d\\\\=\frac{1}{2}\times 3.14\times 35+ 35\\\\= \frac{1}{2}\times 109.9+35\\\\= 54.95+35\\\\= 89.95\\\\No. \: of\: poles= \frac{89.95}{3}\\\\= 29.98\\\\\approx 30

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The formula for the standard error is this:
σM = σ / √N

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σM is the standard error
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So,
σM = 0.45 / √50
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The standard error is 0.0636
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3 years ago
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69. The height of a triangle is 1 in more than the base. If the height is increased by 2 in while the base remains
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Answer:

Base and height

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Step-by-step explanation:

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2 years ago
Need help filling in the blanks.. also not sure if the answers i filled in are correct or not.
tino4ka555 [31]

Answer:

See below.

Step-by-step explanation:

For item 2:  

The Net Price Rate = 276 / 460 = 0.60 = 60 % (answer).

Item 3: Net Price Rate =  3247 * 100 / 3820 = 85% (answer).

Item 4 Net Price Rate =  675.11 / * 100 / 987 =  68.4%. (answer).

Item 5 Item's Net Price = 987 * 0.675 = $666.23 (answer).

Item 7 Net price Rate =  2945* 100 / 4750 = 62%. (answer).

Item 8: First find the list place $x:

0.90* 0.80 * 0.70x  = 252   ( the 0.90 , 0.80 and 0.70 come from 100 - 10% = 1 - 0.10 = 0.90  and so on)

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x = $500

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5 0
3 years ago
Help needed I need the answer with work shown for the graphs
andreyandreev [35.5K]

top left: speed = 2.7 miles per hour  = 2.7 MPH

top right: speed = 0 miles per hour  = 0 MPH

bottom left: speed = 4 miles per hour  = 4 mi/h

bottom right: speed = 2 miles per hour  = 2 mi/h

and so, the fastest is bottom left. And pay attention in class! i'm in highschool and Iearned this in 6th grade!

Step-by-step explanation:

key: speed= distance/time

distance= speedxtime

time=distance/speed

top left: 8/3= 2.66667 MPH= 2.7 MPH

top right: 0/8= 0 MPH= 0 MPH

bottom left: 8/2= 4 MPH= 4 MPH

bottom right: 8/4= 2 MPH= 2 MPH

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suppose a compact car uses 1 gallon of fuel for every 27 miles traveled. How would the graph for the compact car compare to the
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The answer to the question is it would add twenty seven every two times it goes up
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